Figure 1. The general arrangement of a three phase waveform.
Nickerson Field Crew
Model 342A Single Stage End Suction
Well Pump Installation
80 SeriesĀ® Engine Driven
Figure 3. Three phase power has three identical sine waves overlapping at an offset of 2Ļ/3 radians or 120Ā°. When one phase reaches an x-intercept or node the next phase is only 30Ā° and approximately 5.6 milliseconds from reaching its crest.
Figure 2. A simple sine wave with a period of 360Ā° and an amplitude of 1. In single phase power the x-intercepts are 180Ā° from each other. A full period is 360Ā°. A single phase motor has a crest approximately every 16.5 milliseconds giving the motors a tendency to vibrate more, which may contribute to a shortened bearing life.
Close-Coupled Vertical Turbine
Computer Numerical Control Machine (CNC) at Nickerson
Submersible Turbine Pumps
Computer Numerical Control Machine (CNC) at Nickerson
3800 Series, Single Stage End Suction
Machinist at Nickerson Company running a state-of-the-art CNC machine.
Model 411 Horizontal Split Case
Impeller wear ring
Vertical Turbine Pumps, Deep Well
SF SeriesĀ®
Bowl wear ring
380 Series Vertical Inline Pump with VFD
Gorman-Rupp SF SeriesĀ® Submersible Solids-handling Pump
Vertical Lathe
Bowl wear ring
Frame-mount Centrifugal Pumps
Parley’s Water Treatment Plant. Photo credit SLCdocs.com
Super T SeriesĀ® Engine Driven
Impeller wear ring
Schlumberger Pump Assembly
National Pump Vertical Turbine Pumps, API 610
“NSF/ANSI 61.”Ā NSF RSS. The Public Health and Safety Organization, n.d. Web. 07 June 2017.
